How do I splice elements between lists with std::list?

In C++, you can use the `std::list` container to manage a sequence of elements efficiently. One common operation is splicing elements between lists. The `std::list` class provides the `splice` function, which allows you to move elements from one list to another or within the same list without actually copying the elements.

Example of Splicing Elements Between Lists

#include #include int main() { std::list list1 = {1, 2, 3, 4}; std::list list2 = {5, 6, 7}; // Splice the second element from list1 into list2 auto it = list1.begin(); std::advance(it, 1); // Move iterator to the second position list2.splice(list2.end(), list1, it); // Move element to the end of list2 // Output the lists after splicing std::cout << "List 1: "; for (int n : list1) { std::cout << n << ' '; } std::cout << "\nList 2: "; for (int n : list2) { std::cout << n << ' '; } return 0; }

std::list splice C++ list operations element manipulation

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